:root {
  color-scheme: light;
  --ink: #111214;
  --paper: #f7f7f2;
  --panel: #ffffff;
  --muted: #555b62;
  --line: rgba(17, 18, 20, 0.16);
  --red: #c7332f;
  --blue: #2454d6;
  --green: #15724a;
  --amber: #c58418;
  --shadow: 0 18px 48px rgba(17, 18, 20, 0.16);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--paper);
  color: var(--ink);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(17, 18, 20, 0.045) 1px, transparent 1px) 0 0 / 42px 42px,
    linear-gradient(0deg, rgba(17, 18, 20, 0.04) 1px, transparent 1px) 0 0 / 42px 42px,
    var(--paper);
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--blue); }
h1, h2, h3, p { margin: 0; letter-spacing: 0; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(247, 247, 242, 0.9);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
}

.brand img {
  width: 34px;
  height: 34px;
  border-radius: 8px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 6px;
}

nav a {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--muted);
  padding: 0 10px;
  font-size: 14px;
  font-weight: 800;
}

nav a:hover {
  border-color: var(--line);
  color: var(--ink);
  background: white;
}

.hero {
  min-height: 76vh;
  display: flex;
  align-items: center;
  padding: 64px 22px;
  background:
    linear-gradient(90deg, rgba(17, 18, 20, 0.96) 0%, rgba(17, 18, 20, 0.78) 48%, rgba(17, 18, 20, 0.24) 100%),
    url("assets/transformed-page.png") center / cover no-repeat,
    #111214;
  color: white;
}

.hero-copy {
  width: min(760px, 100%);
  margin-left: max(0px, calc((100vw - 1180px) / 2));
}

.eyebrow {
  display: inline-flex;
  width: fit-content;
  margin-bottom: 16px;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: inherit;
  padding: 8px 10px;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

h1 {
  max-width: 720px;
  font-size: 76px;
  line-height: 0.95;
  font-weight: 950;
}

h2 {
  max-width: 760px;
  font-size: 42px;
  line-height: 1.04;
  font-weight: 930;
}

h3 {
  font-size: 20px;
  line-height: 1.15;
}

.lede {
  max-width: 650px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.84);
  font-size: 21px;
  line-height: 1.45;
}

.hero-actions,
.install-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 2px solid currentColor;
  border-radius: 8px;
  background: white;
  color: var(--ink);
  padding: 0 16px;
  font-size: 14px;
  font-weight: 900;
}

.button.primary {
  background: var(--red);
  color: white;
}

.button:hover {
  transform: translateY(-1px);
}

.trust-strip {
  display: grid;
  max-width: 1180px;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: -34px auto 0;
  border: 1px solid var(--line);
  background: var(--line);
  box-shadow: var(--shadow);
}

.trust-strip div {
  min-height: 96px;
  display: grid;
  gap: 6px;
  align-content: center;
  background: var(--panel);
  padding: 20px;
}

.trust-strip strong {
  font-size: 18px;
}

.trust-strip span,
.section-copy,
.check-list,
.note,
details p,
.privacy-grid p,
.era-row p {
  color: var(--muted);
  line-height: 1.6;
}

.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 76px 22px;
}

.two-col {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.72fr);
  gap: 54px;
  align-items: center;
}

.two-col.reverse {
  grid-template-columns: minmax(320px, 0.8fr) minmax(0, 0.95fr);
}

.section-copy {
  max-width: 680px;
  margin-top: 18px;
  font-size: 17px;
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding-left: 20px;
}

.product-shot {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  box-shadow: var(--shadow);
}

.band,
.split-band {
  max-width: none;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #e8f0ff;
}

.band > *,
.split-band > * {
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
}

.section-head {
  padding: 0 22px;
}

.era-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  padding: 24px 22px 0;
}

.era-row article {
  min-height: 178px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 18px;
}

.era-row span {
  display: inline-flex;
  margin-bottom: 14px;
  border-radius: 8px;
  background: #fff0d4;
  color: #6c4508;
  padding: 5px 8px;
  font-size: 12px;
  font-weight: 950;
}

.era-row article:nth-child(2) span { background: #ffe0df; color: #8d211c; }
.era-row article:nth-child(3) span { background: #dfe8ff; color: #173c9a; }
.era-row article:nth-child(4) span { background: #dcf8ec; color: #0e5939; }
.era-row article:nth-child(5) span { background: #eeeeee; color: #333333; }

.era-row strong {
  display: block;
  margin-bottom: 8px;
}

.note {
  margin-top: 20px;
  border-left: 4px solid var(--amber);
  padding-left: 14px;
}

.split-band {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(320px, 1fr);
  gap: 44px;
  background: #f0f7ee;
}

.privacy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.privacy-grid p {
  min-height: 132px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 18px;
}

.privacy-grid strong {
  display: block;
  color: var(--ink);
  margin-bottom: 6px;
}

.install-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.faq {
  padding-top: 20px;
}

details {
  border-top: 1px solid var(--line);
  padding: 18px 0;
}

details:last-child {
  border-bottom: 1px solid var(--line);
}

summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 900;
}

details p {
  max-width: 760px;
  margin-top: 10px;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--line);
  padding: 24px 22px;
  color: var(--muted);
}

@media (max-width: 920px) {
  h1 { font-size: 52px; }
  h2 { font-size: 34px; }
  .hero { min-height: 70vh; background-position: 60% center; }
  .trust-strip,
  .two-col,
  .two-col.reverse,
  .split-band,
  .privacy-grid,
  .install-section {
    grid-template-columns: 1fr;
  }
  .install-section { display: grid; }
  .era-row { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .topbar,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }
  nav { justify-content: flex-start; }
  h1 { font-size: 42px; }
  h2 { font-size: 29px; }
  .lede { font-size: 18px; }
  .hero {
    min-height: 680px;
    padding-top: 52px;
    background:
      linear-gradient(180deg, rgba(17, 18, 20, 0.97) 0%, rgba(17, 18, 20, 0.86) 62%, rgba(17, 18, 20, 0.45) 100%),
      url("assets/transformed-page.png") center bottom / cover no-repeat,
      #111214;
  }
  .trust-strip,
  .era-row {
    grid-template-columns: 1fr;
  }
  .section { padding: 52px 18px; }
  .band,
  .split-band { padding-left: 0; padding-right: 0; }
}